Security key
878972108
Tectonic Therapeutic, Inc. - Common Stock, $0.0001 par value per share (TECX)
CUSIP: 878972108
Q2 2024 13F Holders as of 30 Jun 2024
- Security type / class
- Equity / Common Stock, $0.0001 par value per share
- Total 13F shares
- 5,345,881
- Total 13F value
- $88,045,301
- Share change
- +5,345,632
- SEC-reported price per share
- $16.47
- Number of holders
- 39
- Value change
- +$88,041,200
- Number of buys
- 38
- Shares outstanding
- 18,867,097
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2024
Institutions
39
Top holders
10
TECX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 2026
Tectonic Therapeutic, Inc. SEC filings
Tectonic Therapeutic, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 878972108
Recent filing periods:
Ownership snapshot
Top reported holders of TECX - Tectonic Therapeutic, Inc. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Braden M. Leonard
Disclosed value leader
FMR LLC
Comparable rows
0/15
Latest evidence
20 Jun 2024
3/4/5
13F
Highest disclosed value: $25,001,727
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
FMR LLC has the largest disclosed position value at $25M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens FMR LLC's linked filing trail.
Disclosed position value
Top 5
Braden M. Leonard
$563.8K
FMR LLC
$25M
Atlas Venture Life Science Adviso...
$5.81M
BML Capital Management, LLC
$5.12M
ADAR1 Capital Management, LLC
$5.06M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Braden M. Leonard |
3/4/5
Former 10% owner of AVROBIO
|
—
class O/S missing
|
$563,795
433,688 shares
|
— | 20 Jun 2024 |
| FMR LLC |
13F
Company
|
—
class O/S missing
|
$25,001,727
2,017,633 shares
|
— | 31 Mar 2024 |
| Atlas Venture Life Science Advisors, LLC |
13F
Company
|
—
class O/S missing
|
$5,812,968
4,541,381 shares
|
— | 31 Mar 2024 |
| BML Capital Management, LLC |
13F
Company
|
—
class O/S missing
|
$5,122,083
4,001,627 shares
|
— | 31 Mar 2024 |
| ADAR1 Capital Management, LLC |
13F
Company
|
—
class O/S missing
|
$5,062,217
3,954,857 shares
|
— | 31 Mar 2024 |
| Verition Fund Management LLC |
13F
Company
|
—
class O/S missing
|
$2,467,667
1,927,865 shares
|
— | 31 Mar 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2024
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
39
Shares
5,345,881
Rows available
39
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2024 vs Q1 2024 Across Filers
Q1 2024 holders
0
Q2 2024 holders
39
Holder diff
39
| Investor | Q1 2024 Shares | Q2 2024 Shares | Share Diff | Share Chg % | Q1 2024 value | Q2 2024 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend